I wouldn’t buy a GM car anyway since they’re consistently low quality (they’re the Detroit Lions of auto making) so I won’t act like they just lost my business, but I especially wouldn’t buy one after they inevitably bungle the software.
My Stellantis car nearly never has some sort of Car Play bug. Third party Car Play apps can be extremely buggy but this won’t solve that problem except to just have no ability to use such apps without again picking up my phone.
Look GM, if you insist on owning the in car experience, fine. You’ll lose a ton of sales but that’s your call. Just don’t act like you’re helping us when we all know it’s not about that.